Draft-yoke for railway-car draft-rigging.



W. A. MITCHELL.

DRAFT YQKE FOR RAILWAY CAR DRAFT RlGGlNG.

APPLICATION FILED IULY |913.

Patented Mar. 28, 1916.

IN VEN TOR.

WITNESSES 56M l l THE coLUMmA PLANOGRAPH co., wAsHlNaroN, D. c.

WILLAM `A...lVIITCH'Ilillll'a, 0F SEDALIA, MISSOURI.

DRAFT-'YOKE FOR RAILWAY-GAR DP.-AE". E-RIGGING.

integere.

Specification of Letters Patent.

Patented ldar. 2.3, 1913.

Application filed July 7, 1913.V Serial No. 777,624.

To allfwlwm t may conce-rn Be it known that I, `WILLIAM A. MITCHELL, a citizen ofthe United States, residing at Seda-lia, inthe county of Pettis and State of Missouri, have invented a certain new and useful improvement in Draft-Yokes for Railway-Car Draft-Rigging, of which the following is a full, clear, concise, and exact description, reference being had to thenccompanying drawings, forming a part of this specification.

My invention relates to improvements in draft yokes for railway car draft rigging.

The object of my invention is to provide ameans for connecting a draw bar and yoke strap in railway car draft rigging of a construction which will permit the employment of the standard draw bar, and forwardly extend the same to increase the clearance between connected railroad cars, and which will also permit the employment, if desired, of standard yoke straps. In the drawings forming a part of this specification Figure `1 is a side elevation partly in vertical longitudinal section on lineV 1-1 of Fig. 2 of the front ends of a yoke strap and the rear portion of a draw bar, and the means of connecting the yoke strap and draw bar embodying my invention. Fig. 2 is a plan view partly in horizontal Section on line 2-2 of Fig. 1. Fig. 3 isa side elevation partly in vertical longitudinal section on line 3-3 o-f Figf4 illustrating a modiiication. Fig. 4 is a plan view partly in horizontal section on line 4-4 of Fig. V3.

Referring to Figs. 1 and 2 of the drawings illustrating the preferred form of my invention 5 represents a draw bar, the rear portion thereof only being shown, 6 the butt of the draw bar, the said draw bar being of standard form, and provided with the vertical riret holes 7, 7. S, 8 represent the forward free ends of a yoke strap, the remainder of said strap not being shown in said drawings, the forward ends of said strap being provided with the vertical perforations 9, 9. The yoke strapmay be of the usual standard form with the gibs at the free ends thereof removed. 10 represents a detachable yoke head comprising a box like member having a hollow opening 11 to receive the draw bar, said opening being surrounded by the upper wall 12, lower wall 13 and rear wall 14. The upper and lower walls 12 and 13 respectively are provided with Vthe longitudinal slotslzadapted toreceive the free ends of the yoke strap, the said walls being each vertically perforated to receive the rivets. 16, 16 whichv pass through the openings 9, 9 in the yoke strap, and secure said yoke strap to said head. The walls 12 and 13 are each provided with forward projections 17, 17, which in preferable construction are reinforced by the ribs 18, 18, each of said walls being provided with inturned transverse shoulders 19 adapted to engage the shoulders 20, 20 of the draw bar. The forward proj ecticns 17, 17 of the upper and lower walls of said end may be of any suitable length to provide for the mounting between the same of the draw bar at any distance forward of the free ends of the yoke strap that may be desired. The said forward extensions 17, 17

are provided with the perforations 21, 21

for the` reception of means, preferably a rivet 22, which passes through the usual vertical perforation 7 in the draw bar, and secilres the draw bar within the hollow yoke hea In the modiication illustrated in Figs. 3 and 4,24, 24 represent the free ends of a yoke strap, 25 a draw bar, 26 the butt there of, 27 a detachable yoke head having a hollow opening 28 to receive the draw bar, the said opening being formed between upper and lower walls 29 and 30 respectively, each of said walls being provided with a longitudinal slot 31 to receive the free ends of a yoke strap, the said walls and yoke strap being suitably perforated t0 receive the rivets 32, 32 which engage the free ends of ay yoke strap within said longitudinal slots. The said upper and lower walls 29 and 30 of the yoke head are each provided with the forward extensions 33, 33, said extensions each having inturned transverse flanges 34, 34 forming shoulders against which the shoulders 35, 35 of the draw bar engage, the

Vsaid forward extensions 33, 33 each having in preferable construction reinforcing ribs 36, 36, and having the vertical perforations 37, 37 to receive rivets 38, 3S, one of which passes through each of the usual vertical perforations 39, 39 with which standard draw bars are provided, which rivets are adapted to secure the said draw bar within the hollow head and between the forward projections 33, 33 thereof. The modified form differs from the approved form of my device illustrated ill the drawings only in Y' Copies ot this patent may be obtained for vthe fact that thesaid forward extensions are of greater length, and are adapted to receive a rivet for each of the vertical perforations of the draw" bar instead of for only one of said perforations, asillustrated in the form of my device represented in thereof adapted to receive the ends of'a yoke strap, said slots being formed by partitions spaced from the top and bottom walls ofthe hollow head, said partitions, top andy bottom walls .being provided with alined perforations adapted to receive rivets forV attaching the yoke strap, said'partitions being Vforwardly extended beyond saidV top and bottom-walls and provided with inturned gibs adapted to cooperate with the shoul-V ders of a draw bar, said forwardly ,extended partitions being also provided with alined perforations adapted to receive a rivet eX- tending therethrough and throughthe draw bar. Y'

WILLIAM A. MITCHELL.

Witnesses: y Y' GEoRGEI.-HAIGHT, GEORGE A.JoHNsoN.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

